Routt County Coroner Rob Ryg is joined by investigators from the Routt County Sheriff's Office on Wednesday at the Stagecoach home where a mother shot and killed her 9-year-old son early Wednesday before turning the gun on herself. Lisa Marie Lesyshen confessed to the shooting, according to court documents, and was charged Friday with first-degree murder.

Steamboat Springs  Court records filed Friday by the Routt County District Attorney’s Office describe a premeditated plan by Lisa Marie Lesyshen to kill her 9-year-old son as part of an effort to harm her husband. The couple was in the process of separating and were living in separate rooms in their Stagecoach home, according to court documents.

On Friday, Lesyshen was charged with first-degree murder, child abuse leading to death, domestic violence and two crimes of violence charges that would extend her sentence if she is found guilty. A judge signed the arrest warrant Friday afternoon, and official charges were filed by the DA’s office.

Lesyshen remains hospitalized in Denver but is technically in custody. She was advised of her rights Friday and is being guarded by deputies. Undersheriff Ray Birch said it isn’t clear when she will be well enough to be booked into Routt County Jail.

Asher Lesyshen-Kirlan died early Wednesday morning from multiple gunshot wounds. He was a third-grader at Soda Creek Elementary School in Steamboat Springs. A memorial service for Asher is at 4 p.m. Monday at Howelsen Hill. Har Mishpacha, Steamboat’s Jewish community, is holding a Shabbat healing service in Asher’s memory at 10 a.m. Saturday at United Methodist Church.

The Asher Lesyshen-Kirlan Memorial Fund has been established at Wells Fargo bank, and donations can be made at any of the bank’s branches or sent to P.O. Box 774888, Steamboat Springs, CO 80477.

According to Friday’s arrest warrant, Lesyshen bought a Smith & Wesson .22-caliber revolver from a Steamboat pawn shop Monday after passing a background check. A shop employee told investigators Lesyshen said she wanted the gun for protection because her husband was out of town. The employee also said it appeared Lesyshen knew nothing about guns. The employee showed her how to unload the gun and told her she needed to take it to a shooting range to practice.

One of Lesyshen’s co-workers at Bud Werner Memorial Library told investigators Lesyshen asked Tuesday where she could buy .22-caliber ammunition, according to the affidavit. Lesyshen was referred to a Steamboat gun shop, where she purchased ammunition that day.

Michael Kirlan, Lesyshen’s husband, told investigators he awoke early Wednesday morning to the sound of gunshots. He ran upstairs and saw Lesyshen coming out of Asher’s room. Kirlan said he went into Asher’s room and discovered that he had been shot multiple times. He carried his son to a rug by the home’s entrance.

Kirlan told police he then heard two more gunshots coming from the loft area and assumed Lesyshen had shot herself. According to the arrest warrant, he yelled, “Why would you do something like this?” to which Lesyshen replied, “To hurt you.”

Kirlan said he then left the home out of fear Lesyshen was going to kill him. He said Asher has stopped breathing at that point.

Investigators found a note in Asher’s room that was signed “Lisa & Asher” and appears to have been written by Lesyshen and directed to Kirlan.

Lesyshen told investigators she shot Asher, according to the arrest warrant. She subsequently asked for an attorney.